All Bushmaster 5.56/.223 weapons can fire either round. My question is the 5.56 going to be more accurate than the .223? I have read that the mil-spec m-16 can also shoot both but the .223 round losing accuracy due to 5.56 leade increase. How will this affect a Bushmaster?

Answer / Solution

Hello,

The .223 ammunition is accurate as well and available in a wider range of bullet types and weights.

Subject: Best ammunition

The 1/9 twist barrels will stabilize bullets from 40 to 75 grains. There is no "best" bullet, brand or weight as each barrel has its own harmonics so we do recommend trying a variety to see what works best in your rifle. The Black hills ammunition in a variety of weights usually performs very well. Others to try that I have received good reports on would be the Winchester 45 grain Varminter, Federal Gold 69 grain BTHP and Hornady 75 grain TAP ammo.